Publications by authors named "Wai Ng"

Paralysis affects many people worldwide, and the people affected often suffer from impaired communication. We developed a microelectrode-based Brain-Computer Interface (BCI) for enabling communication in patients affected by paralysis, and implanted it in a patient with Multiple System Atrophy (MSA), a neurodegenerative disease that causes widespread neural symptoms including paralysis. To verify the effectiveness of the BCI system, it was also tested by implanting it in a non-human primate (NHP).

View Article and Find Full Text PDF

Homologous recombination is vital for DNA double-strand break repair. Dysfunction in homologous recombination can lead to cell death, mutations, and cancer. In fission yeast (Schizosaccharomyces pombe), RecQ helicase Rqh1 resolves recombination intermediates.

View Article and Find Full Text PDF
Article Synopsis
  • Accurate staging for nasopharyngeal carcinoma (NPC) is vital for treatment and prognosis, using the AJCC/UICC TNM system as a standardized approach, necessitating ongoing updates to reflect modern care practices.
  • The study aimed to enhance the accuracy and relevance of the TNM-8 system for NPC by analyzing patient data from 2014-2015 and undergoing rigorous validation processes leading to the development of TNM-9.
  • Results from over 4,900 patients highlighted that advanced extranodal extension was a key negative prognostic factor, prompting a proposed restructuring of staging for nonmetastatic cases from TNM-8 classifications.
View Article and Find Full Text PDF

Background: There is currently no dedicated measurement for assessing nursing students' study interest in China. Considering the good reliability, validity, and widespread applicability of the Study Interest Questionnaire-Short Form (SIQ-SF), the objective of this study was to validate its usage among Chinese nursing students.

Methods: The translation and cross-cultural adaptation rigorously followed the modified Brislin model.

View Article and Find Full Text PDF

Introduction: Subthalamic nucleus deep brain stimulation (STN-DBS) is a proven treatment modality for Parkinson's disease (PD), reducing dyskinesia and time spent in the "OFF" state. This study evaluates the long-term outcomes of STN-DBS in PD patients up to 10 years post-surgery in Singapore.

Method: We conducted a retrospective review of Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) scores, activities of daily living (ADLs), disease milestones, dopaminergic drug prescriptions, and adverse events in patients before and after STN-DBS surgery.

View Article and Find Full Text PDF

Background: Virtual reality-reminiscence therapy (VR-RT) has increasingly been applied to older adults to improve psychological well-being and cognition.

Objective: This review aims to identify (1) the design characteristics of conducting a VR-RT and (2) the effects of VR-RT on the user experience, cognitive outcomes and psychological well-being.

Design: Systematic review.

View Article and Find Full Text PDF
Article Synopsis
  • Locally recurrent nasopharyngeal carcinoma (NPC) poses significant treatment challenges due to the absence of standardized guidelines for postoperative re-irradiation (re-RT).
  • This article reviews international recommendations for managing resectable cases of locally recurrent NPC, focusing on re-RT strategies and addressing controversial issues like surgical margins and resectability criteria.
  • The consensus suggests a clearer definition of resectability, optimal re-RT doses around 60 Gy, and emphasizes the potential benefits of hyperfractionation to minimize treatment toxicity, aiming to improve patient outcomes.
View Article and Find Full Text PDF

Photoacoustic spectroscopy (PAS) has been rapidly developed and applied to different detection scenarios. The acoustic pressure detection is an important part in the PAS system. In this paper, an ultrahigh sensitivity Fabry-Perot acoustic sensor with a T-shaped cantilever was proposed.

View Article and Find Full Text PDF

Purpose: This systematic review and meta-synthesis seeks to explore cancer patients' journey towards resiliency. The secondary aim of this review is to identify unique resilience protective factors among cancer patients.

Methods: A thorough search was conducted in eight electronic databases and the grey literature for published or unpublished qualitative and mixed methods studies.

View Article and Find Full Text PDF

Introduction: Extensive research has explored the impact of surgeons' characteristics on patient outcomes; however, the influence of anesthesiologists remains understudied. We performed a population-based retrospective cohort study to investigate the impact of anesthesiologists' characteristics on in-hospital morbidity after spine surgery.

Methods: Adult patients who underwent spine surgery at the London Health Science Centre, Ontario, Canada between January 1, 2010 and June 30, 2023 were included in this study.

View Article and Find Full Text PDF

The treatment of head and neck cancers (HNCs) encompasses a complex paradigm involving a combination of surgery, radiotherapy, and systemic treatment. Locoregional recurrence is a common cause of treatment failure, and few patients are suitable for salvage surgery. Reirradiation with conventional radiation techniques is challenging due to normal tissue tolerance limits and the risk of significant toxicities.

View Article and Find Full Text PDF

Background: Education in nursing has noticed a positive effect of simulation-based education. There are many studies available on the effects of simulation-based education, but most of those involve a single institution, nonrandomized controlled trials, small sample sizes and subjective evaluations of the effects. The purpose of this multicenter randomized controlled trial was to evaluate the effects of high-fidelity simulation, computer-based simulation, high-fidelity simulation combined with computer-based simulation, and case study on undergraduate nursing students.

View Article and Find Full Text PDF

Purpose: Accurate prognostication may aid in the selection of patients who will benefit from surgery at recurrent WHO grade 4 glioma. This study aimed to evaluate the role of serial tumour volumetric measurements for prognostication at first tumour recurrence.

Methods: We retrospectively analyzed patients with histologically-diagnosed WHO grade 4 glioma at initial and at first tumour recurrence at a tertiary hospital between May 2000 and September 2018.

View Article and Find Full Text PDF

Introduction: The decision to offer deep brain stimulation (DBS) to elderly patients with Parkinson's disease (PD) presents challenges due to higher perceived risks and uncertain long-term benefits. Here, we aimed to compare the outcomes after DBS for elderly versus non-elderly patients with PD.

Methods: We analyzed data from our institutional cohort and retrieved publicly available data through a systematic review.

View Article and Find Full Text PDF

Background: This study aims to (1) determine the reliability and validity of the interRAI Chinese Self-reported Carer Needs (SCaN) assessment among informal Chinese caregivers of older adults, (2) identify predictors of caregiving distress in Asian regions with long-standing Confucian values of filial piety and family responsibility.

Methods: This cross-sectional study recruited 531 informal Chinese caregivers of older adults in Hong Kong, Shanghai, Taiwan, and Singapore. The scale reliability was examined using Cronbach's alphas (α) and McDonald's omega coefficient (ω).

View Article and Find Full Text PDF

This bibliometric review aims to identify key actors in the behavioral health services availability/accessibility literature. Coalescing information about these actors could support subsequent research efforts to improve the availability and accessibility of behavioral health services. The authors used a scoping review method and a bibliometric approach.

View Article and Find Full Text PDF

Background: Locally advanced nasopharyngeal cancer (NPC) patients undergoing radiotherapy are at risk of treatment failure, particularly locoregional recurrence. To optimize the individual radiation dose, we hypothesize that the genomic adjusted radiation dose (GARD) can be used to correlate with locoregional control.

Methods: A total of 92 patients with American Joint Committee on Cancer / International Union Against Cancer stage III to stage IVB recruited in a randomized phase III trial were assessed (NPC-0501) (NCT00379262).

View Article and Find Full Text PDF

Introduction: Deep brain stimulation (DBS) is a well-established surgical therapy for patients with Parkinsons' Disease (PD). Traditionally, DBS surgery for PD is performed under local anesthesia, whereby the patient is awake to facilitate intraoperative neurophysiological confirmation of the intended target using microelectrode recordings. General anesthesia allows for improved patient comfort without sacrificing anatomic precision and clinical outcomes.

View Article and Find Full Text PDF

Background & Aims: Accumulating evidence showed that inflammation contributes markedly to cancer progression, with C-reactive protein (CRP) being one of the lengthily studied inflammation marker. For breast cancer (BCa), pre-treatment elevated CRP upon diagnosis was linked with increased mortality. This study aimed to identify factors predictive of elevated CRP in pre-treatment BCa population that can serve as potential therapeutic targets to reduce inflammation.

View Article and Find Full Text PDF

Hepatic angiosarcoma is an extremely rare primary malignant vascular tumour in children with very poor prognosis. Radiological diagnosis of hepatic angiosarcoma is challenging due to overlapping imaging features with other benign vascular hepatic tumours, particularly infantile hepatic haemangioma. Consumptive hypothyroidism is a condition that is almost exclusively associated with infantile hepatic haemangioma and has never been reported in angiosarcoma.

View Article and Find Full Text PDF

This systematic review examines the role of dosimetric parameters in predicting temporal lobe necrosis (TLN) risk in nasopharyngeal carcinoma (NPC) patients treated with three-dimensional conformal RT (3D-CRT), intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT). TLN is a serious late complication that can adversely affect the quality of life of NPC patients. Understanding the relationship between dosimetric parameters and TLN can guide treatment planning and minimize radiation-related complications.

View Article and Find Full Text PDF

Background: Filial piety, as a major traditional norm in Chinese culture and in Chinese families, affects the attitudes and behaviors of adult children toward their parents and impacts their end-of-life decision-making and the quality of death of their parents. Death literacy is a novel concept aimed at promoting palliative care in the context of public health.

Aims: To understand attitudes and behaviors related to filial piety and to examine the role of death literacy in filial behaviors toward dying parents among residents in the Guangdong-Hong Kong-Macao Greater Bay Area of China.

View Article and Find Full Text PDF